Tomoko Morikawa, known as Tomo-chan, appears across the *Da Capo* franchise and its spin-off *Da Capo: If*. A student and close friend of Kotori Shirakawa, she provides piano accompaniment for Kotori's singing performances. Tomoko staunchly believes Kotori and Jun'ichi Asakura are destined partners, consistently encouraging Kotori to pursue this relationship. Though less academically adept than Kotori, Tomoko compensates with a direct and occasionally impulsive demeanor. Her visual traits include purple hair and blue eyes. Later iterations in *Da Capo Second Season* and *Da Capo If* significantly alter her design, emphasizing her notably tall stature and frequently obscuring her face from view.